Create: Embedded Freights Fly

The addon changes how Create Fly packages are packed, so an entire package can be nested inside another package for recursive storage. Nested packages keep their original contents unpacked rather than merged, which makes recursive package storage possible. Standard redstone-controlled packaging and request packaging keep working. Only the server needs the mod, so it can be installed normally in singleplayer and on multiplayer servers. Excessive nesting can cause the world to implode, a recursive entropy effect the author built in. Create Fly and Cloth Config API are required. Files target 1.21.11 only, released under the MIT License, and the project is not open source.